1,12-Bis(2-carboxy­phen­yl)-5,8-dioxa-2,11-diaza­dodecane-2,11-diium dichloride methanol solvate

In the title salt hydrate, C(22)H(30)N(2)O(6) (2+)·2Cl(−)·CH(4)O, the dication adopts a U-shaped conformation whereby the benzene rings are splayed out from the chain linking them. All components of the asymmetric unit are linked into a cohesive entity by a combination of O—H⋯Cl(−), N(+)—H⋯Cl(−) and N(+)—H⋯O charge-assisted hydrogen-bonding inter­actions. The assemblies thus formed are linked into supra­molecular helical chains along [010] via C—H⋯O contacts. The resulting chains are, in turn, consolidated into the three-dimensional crystal structure by C—H⋯π contacts.